New Ways to Reduce Antibiotics in Food Animals by 2030. Animals Biology Health 

New Ways to Reduce Antibiotics in Food Animals by 2030

By Neha Jain @lifesciexplore In a new study, researchers in the United States and Europe propose three measures—capping antibiotic use in farm animals, imposing a fee for veterinary use of antibiotics, and limiting meat intake—that, together, can reduce the use of antibiotics in food animals by up to 80 percent by 2030. Antibiotic resistance results from antibiotics overuse Overuse of antibiotics, particularly in animals for food, is the main cause of the spread of resistance whereby antibiotics lose their effectiveness, and infections become untreatable, leading to what many scientists call…

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Spinach, iron, and fiber Biology Health 

Stopping Bacteria from Stealing Our Iron

By Ada Hagan @adahagan As we discussed last time, bacteria that infect the human body face a major challenge, iron, which is essential for bacterial growth, is hard to obtain from human tissues.  Many pathogenic bacteria solve this problem by deploying “stealth siderophores,” which steal iron from human iron-binding proteins while evading our defenses. In the battle between humans and pathogenic bacteria, our best weapons—antibiotics—are being weakened by widespread resistance. Is there a way to use bacteria’s need for iron against them? Researchers have pursued the answer to this question…

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Staph, antibiotic Biology Health 

New Antibiotic Discovered Up Your Nose

By Michelle Kuepper While concerns continue to build around the increase in drug-resistant germs, and researchers look for alternatives to antibiotics, one team has isolated a bacterium inside the human nose that works as an antibiotic against Staph infections. Biologists have discovered that a bacterium found in the human nose can produce antibiotics to destroy Staphyloccus aureus (Staph), a bacterium that causes many conditions including Toxic Shock Syndrom, skin infections and food poisoning. The researchers behind the Nature study found that the antibiotic, which they named Lugdunin, is so powerful it can even kill…

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Antibiotic resistance: Tinker Creek is a pristine black water stream on the Savannah River Site. The bacteria in this stream are susceptible to antibiotics. Photo credit: Linda Lee/University of Georgia Biology Environment Health 

Environmental Contaminants Add to Antibiotic Resistance

By Neha Jain @lifesciexplore Environmental Contaminants and Antibiotic Resistance Are you concerned about the overuse and misuse of antibiotics causing antibiotic-resistant bacteria? Now, scientists have reported another indirect trigger for antibiotic resistance: heavy metals present in environmental contaminants such as industrial waste. “Bacteria in contaminated streams have higher levels of antibiotic resistance than bacteria found in more pristine streams,” says J Vaun McArthur, the lead researcher of the study, from the University of Georgia. McArthur has been studying the role of industrial pollution in antibiotic resistance in waterborne bacteria for…

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antibioticsStaphylococcus aureus (Public Domain photo by Janice Haney Carr, Matthew J. Arduino, DRPH, USCDCP) Biology Health 

Searching for Alternatives to Antibiotics

By Steven Spence Biological Arms Race Modern, effective antibiotics were only discovered and widely used in the 20th century. The most famous antibiotic discovery was penicillin (Fleming, et al 1928), which only began to be used from 1942 onwards by the Allied Forces during World War II. It had a huge impact on the treatment of infections due to bacteria, but bacteria rapidly developed resistance to penicillin. Scientists and medical researchers identified more antibiotics, but over time bacteria became resistant to them, too. Today it is common to see news…

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